From 48c43b2d2ec768b81a5054f65f1b7a3aff58bd7c Mon Sep 17 00:00:00 2001
From: renz <renz@uuxo.net>
Date: Sat, 13 Dec 2025 09:45:07 +0000
Subject: [PATCH] fix: Pin Alpine to 3.19 and split apk commands for QEMU ARM64
 compatibility

- Removed redundant --platform=$TARGETPLATFORM from runtime stage
- Pinned Alpine to 3.19 for better QEMU emulation stability
- Split apk add commands to prevent trigger failures under QEMU
- Fixes ARM64 build failures in CI/CD pipeline
---
 Dockerfile.multiarch | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/Dockerfile.multiarch b/Dockerfile.multiarch
index f14e5ce..f8090c8 100644
--- a/Dockerfile.multiarch
+++ b/Dockerfile.multiarch
@@ -27,14 +27,18 @@ RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} \
     -o hmac-file-server ./cmd/server/
 
 # Production stage - Multi-arch Alpine
-FROM --platform=$TARGETPLATFORM alpine:latest
+# Using pinned version 3.19 which has better QEMU compatibility
+FROM alpine:3.19
+
+# Build arguments for runtime stage
+ARG TARGETARCH
 
 # Install runtime dependencies
-RUN apk add --no-cache \
-    ca-certificates \
-    tzdata \
-    curl \
-    shadow
+# Split into separate commands for better QEMU compatibility
+RUN apk add --no-cache ca-certificates
+RUN apk add --no-cache tzdata
+RUN apk add --no-cache curl
+RUN apk add --no-cache shadow
 
 # Create non-root user for security
 RUN adduser -D -s /bin/sh -u 1011 appuser